#281D64#281D64

#281D64 is a dark, moderate blue. Relative luminance 0.022; OKLCH L 29.4% C 0.119 H 283.4°. Best body text is #FFFFFF at 14.48:1 contrast (WCAG AA passes).

Color values

HEX	#281D64
RGB	rgb(40, 29, 100)
HSL	hsl(249, 55%, 25%)
HSV	hsv(249, 71%, 39%)
CMYK	cmyk(60%, 71%, 0%, 60.8%)
CIE-LAB	lab(16.75, 26.98, -40.22)
CIE-LCH	lch(16.75, 48.43, 303.86°)
OKLab	oklab(29.38% 0.0275 -0.1157)
OKLCH	oklch(29.38% 0.119 283.4)
XYZ	xyz(3.6140, 2.2497, 12.2979)
Luminance	0.0225 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281D64 #59641D

analogous

#1D3564 #281D64 #4B1D64

triadic

#281D64 #64281D #1D6428

tetradic

#281D64 #641D35 #59641D #1D644B

square

#281D64 #641D35 #59641D #1D644B

split-complementary

#281D64 #644B1D #35641D

monochromatic

#090718 #150F35 #281D64 #3B2B93 #4E39C3

Accessibility & contrast

On white

14.48

#281D64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#281D64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281D64

14.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281D64	#FFFFFF	#000000	##FFFFFF
##281D64	1.00	14.48	1.45	14.48
#FFFFFF	14.48	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C66

Deuteranopia (green-blind)

#002763

Tritanopia (blue-blind)

#0A2F3D

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #281d64;
/* rgb */ color: rgb(40, 29, 100);
/* oklch */ color: oklch(29.4% 0.119 283.4);

Tailwind

colors: {
  custom: {
    50: '#695a91',
    500: '#281d64',
    950: '#000000',
  },
}

SCSS

$custom: #281d64;
$custom-light: #695a91;
$custom-dark: #000000;

JSON

{
  "hex": "#281d64",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 100
  },
  "hsl": {
    "h": 249.296,
    "s": 55.039,
    "l": 25.294
  },
  "oklch": {
    "l": 0.29382,
    "c": 0.11889,
    "h": 283.4
  },
  "luminance": 0.0225
}

Semantic roles & 50–950 ramp

primary

#281D64

secondary

#8C9944

accent

#DE49C7

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#07040D

muted

#7A797E

Preview Lab

Preview with #281D64

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →